snakes and casey anthony. >> like snakes on the plane. >> all right, martin. thank you. >>> well, the flu can turn from mild to deadly very quickly. and we have the story of one mom who saved her son's life by acting so quickly. >>> the flu and common cold have many shared simp stoms, and sometimes people delay going to a doctor thinking they have a cold that will just go away. but you need to act quickly to prevent complications and even death. cnn senior medical correspondent elizabeth cohen spoke to a mom who saved her son's life by fast action. >> reporter: darius carr is so sick with the flu, he's in the hospital. he could have died if not for the quick thinking of his mother. robbie perry was keeping a close eye on her son at home. he didn't seem all that sick. then suddenly wednesday night -- >> he couldn't hardly breathe. he was, you know, gasping for, you know, breath, and that was real scary because i thought he was going to pass out at any minute. >> reporter: robbie immediately brought her 7-year-old son to the emergency room. it's just a short dri